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� <br />502.3 <br />� <br />�. <br />� <br />� <br />� <br />h e ,�,p�, �� gasins <br />500-2 <br />Manholes shall be preeast conerete manholes. Preaast concrete manholes <br />shall eomply with '1,S.T.M. Designation C-�78. Manholes shall be four <br />feet (4�) in diameter unless otherWise noted on the plans. Manhole <br />precast top seations shall be eecentrie eones or flat alab aa iadicated <br />in the Plan�. . , <br />Catch Basins shall be precast conerete eatch basins. Preaast cateh <br />basins �h�l,l camply.with A.S.T.M. Designation C-�78. Cateh Basins <br />shall be 27" in diameter unlesa otherwise noted on the plana a.nd ahall <br />be Cretex Type 433F or approved equal. Preeast segmental blxic can be <br />used az�d shall eonform to A.S.T.M, Designation C-139. Bloelcs shall <br />provide an eight inah (8") �rall thickness. All bloQk manholee shall be <br />grouted inside and outside to insure xater tightn�ss. <br />It is the intent that Where preoast manholes and cateh basins are used, <br />� th�t adjuatment rings �e provided to allow for a minimum of six inch <br />i6") adj�stment. All manholes and aateh ba9ins shall be watertight. <br />r 5�2. 5 <br />5oz.6 <br />� <br />� 502,7 <br />� <br />�� <br />� <br />�� <br />502.8 <br />Mortar sha11 aont'orm ta A�S,T.M. Designation C-270 under Property <br />Spe�,ification. Hydrated Lime eonforming to A.S.T.M. Designation C-207 <br />shall be used in the mixture. t�ortar aggregate shall eonform to <br />�.S.T.M. Designation C-144. <br />Castinas <br />Manhole and catch baain eastings shall be Neenah•Foundry or approved <br />equal, and shail be as noted on plans, details, or in drainage chart. <br />Ma h e Stens <br />Manhole steps shall be east iron or alt�minum alloy equal to Neenah <br />R-1980 Serie� 1 and 2 and spaced at sixteen inches (16"). <br />A°� .I�.�. �� Guard� <br />All aprons wi�l �e furniahed with trash guards and tied to the next two <br />upstream pipes using 01U" bolt gasteners as shown on the detail sheet of <br />Che �lans, <br />Inaulation shall be equal to Aow Chemical Company STRYFOAM HI brand <br />plastie foam, or app�oved equal. <br />Granul�r M eria <br />Granular materials sha�l be furnished for foundation baekfill, bedding <br />or other purposes in acaordance with Roseville Standard Specification <br />602. 1. <br />7 <br />